Five things to keep an eye on in the Premier League this weekend

The battle on the touchline is often as entertaining as the battle on the pitch when Chelsea play Arsenal. To say that Jose Mourinho and Arsene Wenger aren’t the best of friends in an understatement. The two managers haven’t seen eye-to-eye since the ‘Special One’ first came to England in 2004. Their relationship has soured even more since Jose returned to the Bridge in 2013, with the Blues boss labeling the Frenchman a “specialist in failure”. They have since clashed and now always refuse to shake hands.